build.sh: use long commands only

Signed-off-by: Maxim Polyakov <[email protected]>

README.md

@@ -24,21 +24,20 @@ Make some preparations once before start the building process:
 git clone https://github.com/maxpoliak/rtems-ec-cli.git && cd rtems-ec-cli && ./preparations.sh
 ```
 
-Use the help to print all the available options:
+Use the help to print all the available commands:
 
 ```
 ./build.sh help
 ```
 ```
-Use ./build.sh [OPTIONS...]
-Use $0 [OPTIONS...]"
- -a | all Build all: cross-compiler, RTEMS OS and ile-cli application
- rtems Build RTEMS OS
- cross Build cross-compiler
- -C | cleanall Clear all
- -r | rebuild Set rebuild flag
- Delete the application's object files before building it
- -h | help Print help
+Use ./build.sh [COMMANDS...]
+ all Build all: cross-compiler, RTEMS OS and ile-cli application
+ rtems Build RTEMS OS
+ cross Build cross-compiler
+ cleanall Clear all
+ rebuild Set rebuild flag
+ Delete the application's object files before building it
+ help Print help
 ```
 
 For the first build, use the build script with the "-a" or "all" option to build

build.sh

@@ -78,54 +78,48 @@ function build_application
 
 function print_help
 {
- echo "Use $0 [OPTIONS...]"
- echo " -a | all Build all: cross-compiler, RTEMS OS and ile-cli application"
- echo "  rtems Build RTEMS OS"
- echo "  cross Build cross-compiler"
- echo " -C | cleanall Clear all"
- echo " -r | rebuild Set rebuils flag"
- echo "  Delete the application's object files before building it"
- echo " -h | help Print help"
+ echo "Use $0 [COMMANDS...]"
+ echo " all  Build all: cross-compiler, RTEMS OS and ile-cli application"
+ echo " rtems  Build RTEMS OS"
+ echo " cross  Build cross-compiler"
+ echo " cleanall  Clear all"
+ echo " rebuild  Set rebuils flag"
+ echo " Delete the application's object files before building it"
+ echo " help  Print help"
 }
 
 while [ "${1:-}" != "" ]; do
  case "$1" in
- "-a" | "all")
+ "all")
  FLAG_BUILD_ALL=1
- shift
  break
  ;;
  "rtems")
  FLAG_BUILD_RTEMS=1
- shift
  break
  ;;
  "cross")
  FLAG_BUILD_CROSS=1
- shift
  break
  ;;
- "-C" | "cleanall")
+ "cleanall")
  FLAG_CLEAR_ALL=1
- shift
  break
  ;;
- "-r" | "rebuild")
+ "rebuild")
  FLAG_REBUILD_APP=1
- shift
  break
  ;;
- "-h" | "help")
+ "help")
  print_help
  exit 0
  ;;
  *)
- echo "invalid command or option ($1)"
+ echo "invalid command ($1)"
  print_help
  exit 1
  ;;
  esac
- shift
 done
 
 if [[ ${FLAG_CLEAR_ALL} -eq 1 ]] ; then